Category: Glaze > Green > Oribe
Created 2017-08-15 16:27:45 by Adam Yungbluth
Categories: Glaze > Green > Oribe
Firing Temperature: Δ9-13
Atmospheres: Reduction, Salt & Soda, Wood
Surface Type: Glossy - Semi
Transparency: Semi-opaque

Developed in a Glaze Class taught by Brice Dyer at the Morean Center for Clay. Kathrine Howd & Sheila Plant were the two students responsible for this alteration.

I think it works best in atmospheric kilns, over reduction.

Material Amount Batch Subtotal
Custer Feldspar 31
Silica 25.3
Whiting 22.1
EPK 12.6
Calcined Talc, Magnesium Silicate 7.9
Bone Ash 1.1
Total Base:100
Copper Carbonate 5.2
Strontium Carbonate 5.2
Total: 110.4

Percentage Analysis

Ingredient Amount SiO2 Al2O3 MgO CaO SrO K2O Na2O KNaO P2O5 Fe2O3 TiO2 CuO LOI
Custer Feldspar3121.
Calcined Talc, Magnesium Silicate7.95.012.52
Bone Ash1.10.610.470.02
Copper Carbonate5.23.351.85
Strontium Carbonate5.23.651.55
100% no LOI 60.5110.542.6713.863.853.320.994.310.530.130.053.54

Unity Molecular Formula (UMF)



0.04 Na2O
0.09 K2O
0.09 SrO
0.61 CaO
0.17 MgO


0.26 Al2O3


2.5 SiO2


0.01 P2O5
0.11 CuO





0.13 : 0.87

SiO2:Al2O3 Chart

Closest 20 neighbors in Glaze > Green > Oribe.

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Stull Chart
SiO2:Al2O3 Ratio
SiO2:Al2O3 Ratio 9.78

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09/2016 Note: This is a new feature. If a recipe material is not listed, that material's data has not yet been added. Some materials only have GHS ratings, while others only have HMIS ratings. Warnings differ between systems and countries. Glazy does not take any responsibility for accuracy of linked SDS information. Contact your ceramics supplier for safety information for your specific materials.
Globally Harmonized System (GHS) Hazardous Materials Identification System (HMIS) SDS Link
Material Pictograms Signal Word Hazard Statements Health Flammability Hazard Protection
Custer Feldspar HarmfulHealth Hazard WARNING May cause damage to lungs through prolonged or repeated inhalation.
Suspected of causing cancer through
prolonged or repeated inhalation.
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
May cause skin or eye irritation.
Silica HarmfulHealth Hazard DANGER From 200-Mesh SDS:
May cause cancer by inhalation.
Causes damage to lungs through prolonged or repeated exposure by inhalation.
* 0 0 E
Whiting Harmful WARNING Causes eye irritation
EPK HarmfulHealth Hazard DANGER EPK Kaolin is a naturally occurring mineral, which may contain amounts of crystalline silica
typically 0.1-1.0%, may cause damage to respiratory system through prolonged or repeated
1 0 0 E
Bone Ash
Copper Carbonate Harmful WARNING Harmful if swallowed.
Causes skin irritation.
Causes serious eye irritation.
Strontium Carbonate Harmful WARNING Product dust may be irritating to eyes,skin and respiratory system.  1 0 0 E